Question: Name the website of a business enterprise with the lowest number of registered users.
Paraphrase: Which business enterprise's website has the fewest registered users.
SPARQL (Wikidata): select ?ent where { ?ent wdt:P31 wd:Q35127 . ?ent wdt:P1833 ?obj . ?ent wdt:P31 wd:Q4830453. } ORDER BY ASC(?obj)LIMIT 5 
Answer: medici.tv, Renren